Basionym Name:Parmelia crossophylla Wahlenb., in Acharius, Methodus, Sectio prior (Stockholmiæ): 48 (1803)
Homotypic synonyms:Heterodermia aquila var. crossophylla (Wahlenb.) Trevis., Atti Soc. ital. Sci. nat. 11: 615 (1868)Lichen aquilus * crossophylla (Wahlenb.) Lam., Encycl. Méth. Bot., Suppl. (Paris) 3(2): 404 (1813)Parmelia aquila f. crossophylla (Wahlenb.) Ach., Syn. meth. lich. (Lund): 205 (1814)Parmelia aquila var. crossophylla (Wahlenb.) Ach., Lich. Univ.: 488 (1810)Physcia aquila var. crossophylla (Wahlenb.) Nyl., Lich. Scand. (Helsinki): 110 (1861)